{"product_id":"siemens-lgb3b030b-30a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens LGB3B030B 30 Amp 600 Volt 3-Pole Bolt-On Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens LGB3B030B\u003c\/strong\u003e is a 30A, 600V, 3-pole bolt-on molded case circuit breaker designed to protect branch circuits and short circuits in panelboards and load centers. Built for dependable protection in residential, commercial, and light industrial environments, this unit pairs seamlessly with Siemens OEM panelboards for straightforward installation and reliable performance when you need it most.\u003c\/p\u003e \u003ch3\u003eKey differentiators that matter in the field\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, reducing the risk of loose contacts in demanding installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection against overcurrent and short-circuit events, helping to minimize nuisance trips and downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e ensures synchronized protection across all phases in 3-phase systems, which is essential for motors, pumps, and other multi-wire loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is purpose-built to fit matching Siemens load centers and panelboards, simplifying replacements, upgrades, and serviceability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suited for residential, commercial, and light industrial electrical infrastructure, from home service panels to small business equipment rooms.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: LGB3B030B\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 30 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical benefits\u003c\/h3\u003e\n\u003cp\u003eIdeal for upgrading aging panels or configuring new installations in 3‑phase environments. In commercial spaces, it protects motor-driven equipment like pumps and fans, as well as lighting and control circuits, while in light industrial settings it helps safeguard conveyors and small manufacturing lines. The combination of bolt-on reliability and a thermal-magnetic trip curve means fewer trips due to minor disturbances and a quicker response to actual faults—keeping downtime to a minimum.\u003c\/p\u003e \u003ch3\u003eTips for optimal performance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMatch this breaker with compatible Siemens panelboards to ensure optimal electrical contact and coordinated protection.\u003c\/li\u003e \u003cli\u003eWhen replacing an older unit, verify the panel rating and ensure the existing bus connections are clean and undamaged before bolting the breaker in place.\u003c\/li\u003e \u003cli\u003eFollow manufacturer guidelines for torque and secure mounting to maintain the vibration-resistant benefits of the bolt-on design.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349822296226,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-lgb3b030b-30-a-600-v-3-pole-bolt-on-circuit-breaker-446.webp?v=1788733411","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb3b030b-30a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}